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Author Herbert, R.B., Jr.; Benner, S.G.; Blowes, D.W. url  isbn
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  Title Reactive barrier treatment of groundwater contaminated by acid mine drainage; sulphur accumulation and sulphide formation Type Book Chapter
  Year 1998 Publication Groundwater Quality: Remediation and Protection Abbreviated Journal  
  Volume Issue Pages 451-457  
  Keywords acid mine drainage Canada chemical analysis contaminant plumes Eastern Canada ground water hydraulic conductivity hydrolysis Nickel Rim Mine Ontario pH pollution porosity pyrrhotite remediation sample preparation Sudbury Basin sulfides sulfur tailings water pollution 22, Environmental geology  
  Abstract A permeable reactive barrier was installed in August 1995 at the Nickel Rim Mine near Sudbury, Ontario, Canada, for the passive remediation of groundwater contaminated with acid mine drainage. The reactive component of the barrier consists of a mixture of municipal and leaf compost and wood chips: the organic material promotes bacterially-mediated sulphate reduction. Hydrogen sulphide, a product of sulphate reduction, may then complex with aqueous ferrous iron and precipitate as iron sulphide. This study presents the solid phase sulphur chemistry of the reactive wall after two years of operation, and discusses the formation and accumulation of iron sulphide minerals in the reactive material. The results from the solid-phase chemical analysis of core samples indicate that there is an accumulation of reduced inorganic sulphur in the reactive wall, with levels reaching 190 mu mol g (super -1) (dry weight) by July 1997.  
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  Publisher IAHS-AISH Publication, vol.250 Place of Publication Editor Herbert, M.; Kovar, K.  
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  ISSN ISBN 1901502554 Medium  
  Area Expedition Conference  
  Notes Reactive barrier treatment of groundwater contaminated by acid mine drainage; sulphur accumulation and sulphide formation; GeoRef; English; 1999-065115; GQ 98 conference, Tubingen, Federal Republic of Germany, Sept. 21-24, 1998 References: 15; illus. Approved no  
  Call Number CBU @ c.wolke @ 16621 Serial 65  
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Author Smyth, D.; Blowes, D.; Ptacek, C.; Bain, J. url  openurl
  Title Application of permeable reactive barriers for treating mine drainage and dissolved metals in groundwater Type Journal Article
  Year 2004 Publication Geotechnical News Abbreviated Journal  
  Volume 22 Issue 1 Pages 39-44  
  Keywords acid mine drainage; acid rock drainage; aquifers; Canada; Cochrane District Ontario; concentration; disposal barriers; Eastern Canada; ground water; Kidd Creek; mine drainage; mines; Ontario; oxidation; permeability; permeable reactive barrier; pollutants; pollution; remediation; sulfates; sulfides; tailings; testing; Timmins Ontario; waste disposal; waste management; waste rock; waste water; water treatment 22, Environmental geology  
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  ISSN 0823-650x ISBN Medium  
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  Notes Application of permeable reactive barriers for treating mine drainage and dissolved metals in groundwater; 2006-058196; References: 20; sects. Canada (CAN); GeoRef; English Approved no  
  Call Number CBU @ c.wolke @ 5457 Serial 66  
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Author Benner, S.G.; Blowes, D.W.; Ptacek, C.J. url  openurl
  Title A full-scale porous reactive wall for prevention of acid mine drainage Type Journal Article
  Year 1997 Publication Ground Water Monitoring and Remediation Abbreviated Journal  
  Volume 17 Issue 4 Pages 99-107  
  Keywords acid mine drainage alkalinity bacteria Canada case studies concentration dissolved materials drainage Eastern Canada ground water mines observation wells Ontario permeability pH pollution porous materials recharge reduction remediation site exploration Sudbury District Ontario sulfate ion surface water waste disposal water pollution Groundwater quality Groundwater problems and environmental effects Pollution and waste management non radioactive geographical abstracts: physical geography hydrology (71 6 11) geomechanics abstracts: excavations (77 10 10) geological abstracts: environmental geology (72 14 2) groundwater protection permeable barrier acid mine drainage aquifer groundwater acid min drainage contamination permeable barrier groundwater protection permeable barrier acid mine drainage aquifer Canada, Ontario, Sudbury, Nickel Rim  
  Abstract The generation and release of acidic drainage containing high concentrations of dissolved metals from decommissioned mine wastes is an environmental problem of international scale. A potential solution to many acid drainage problem is the installation of permeable reactive walls into aquifers affected by drainage water derived from mine waste materials. A permeable reactive wall installed into an aquifer impacted by low-quality mine drainage waters was installed in August 1995 at the Nickel Rim mine site near Sudbury, Ontario. The reactive mixture, containing organic matter, was designed to promote bacterially mediated sulfate reduction and subsequent metal sulfide precipitation. The reactive wall is installed to an average depth of 12 feet (3.6 m) and is 49 feet (15 m) long perpendicular to ground water flow. The wall thickness (flow path length) is 13 feet (4 m). Initial results, collected nine months after installation, indicate that sulfate reduction and metal sulfide precipitation is occurring. Comparing water entering the wall to treated water existing the wall, sulfate concentrations decrease from 2400 to 4600 mg/L to 200 to 3600 mg/L; Fe concentration decrease from 250 to 1300 mg/L to 1.0 to 40 mg/L, pH increases from 5.8 to 7.0; and alkalinity (as CaCO<inf>3</inf>) increases from 0 to 50 mg/L to 600 to 2000 mg/L. The reactive wall has effectively removed the capacity of the ground water to generate acidity on discharge to the surface. Calculations based on comparison to previously run laboratory column experiments indicate that the reactive wall has potential to remain effective for at least 15 years.  
  Address Dr. S.G. Benner, Earth Sciences Department, University of Waterloo, Waterloo, Ont. N2L 3G1, Canada  
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  ISSN 1069-3629 ISBN Medium  
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  Notes Review; A full-scale porous reactive wall for prevention of acid mine drainage; 0337197; United-States 46; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/10621.pdf; Geobase Approved no  
  Call Number CBU @ c.wolke @ 17555 Serial 67  
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Author Wiseman, I.M.; Rutt, G.P.; Edwards, P.J. url  openurl
  Title Constructed wetlands for minewater treatment: Environmental benefits and ecological recovery Type Journal Article
  Year 2004 Publication Water and Environment Journal Abbreviated Journal  
  Volume 18 Issue 3 Pages 133-138  
  Keywords mine water treatment  
  Abstract The ecology of the River Pelenna (in South Wales) was impoverished by polluted discharges from abandoned coal mines. A series of passive constructed wetlands was created in order to treat these discharges and to improve the ecology of the river. A three-year Environment Agency R&D project investigated the performance, environmental benefits and sustainability of the constructed wetlands. It showed that the treatment systems were removing most of the iron contamination. In the reaches downstream from the minewaters, the dissolved-iron concentration quickly dropped below the target level. Invertebrate abundance, trout and riverine bird populations increased in following years. However, occasional overflows from the systems have significantly affected the ecology of one stretch of river The research work has provided an insight into the potential for ecological recovery associated with future minewater treatment.  
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  ISSN 1747-6585 ISBN Medium  
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  Notes Aug.; Constructed wetlands for minewater treatment: Environmental benefits and ecological recovery; Wos:000230520000002; Times Cited: 0; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/7891.pdf; ISI Web of Science Approved no  
  Call Number CBU @ c.wolke @ 7891 Serial 68  
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Author Gale, J.E.; MacLeod, R.; Bursey, G. url  openurl
  Title The role of hydrogeology in developing effective mine water control programs in fractured porous rocks Resources development and Earth science; environmental and economic issues (Abstract) Type Book Chapter
  Year 1999 Publication Atlantic Geology Abbreviated Journal  
  Volume Issue Pages 172  
  Keywords anisotropy; bedrock; controls; fractured materials; fractures; geometry; ground water; heterogeneity; mine dewatering; mines; mining; mining geology; numerical models; permeability; porous materials; remediation; three-dimensional models; underground mining; velocity 21, Hydrogeology  
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  Publisher Place of Publication 35 Editor Pickerill, R.K.; Barr, S.M.; Williams, G.L.  
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  Notes The role of hydrogeology in developing effective mine water control programs in fractured porous rocks Resources development and Earth science; environmental and economic issues (Abstract); GeoRef; English; 2000-073328; Geological Association of Canada, 1999 annual technical meeting, Newfoundland Section, Saint Johns, NL, Canada, Feb. 22-23, 1999 Approved no  
  Call Number CBU @ c.wolke @ 5958 Serial 69  
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